Excellent product. It solves the problems we have faced with I don't know how many other water bottles and thermoses we have bought over the years for the kids. Some developed odors after one day (e.g., ecolife and coolbe), in others the base became deformed and they wouldn't stand upright after a while, others had issues with sealing or stopped keeping the water cold (klean kanteen).

This one solves all that. It has a silicone base to protect it from base deformation, it doesn't smell, and it's super airtight. It also comes with different caps and straws as options.

We haven't seen in practice yet how easily it loses color or how the surface gets damaged after a drop (given that we got them for the kids, so greater wear and tear is expected), nor how well it keeps cold water in the heat, given that it's winter. I will update later.